Advances in patterning materials for 193 nm immersion lithography

DP Sanders - Chemical reviews, 2010 - ACS Publications
Advancements in optical lithography tools, processes, and patterning materials have been
critical to the continued performance increases of semiconductor devices as well as to the …

Extending optics to 50 nm and beyond with immersion lithography

M Switkes, RR Kunz, M Rothschild, RF Sinta… - Journal of Vacuum …, 2003 - pubs.aip.org
Numerical imaging simulations demonstrate the capability of immersion lithography to print
features smaller than 45 nm (35 nm) with good depth of focus at a vacuum wavelength of …

Simulation of imaging and stray light effects in immersion lithography

S Hafeman, AR Neureuther - Optical Microlithography XVI, 2003 - spiedigitallibrary.org
Immersion lithography is a viable method for continuing the reduction in critical dimension.
Much of the improvement in image quality in immersion lithography centers around high-NA …

Simulation of the coupled thermal optical effects for liquid immersion micro-/nano-lithography

SY Baek, AC Wei, DC Cole, G Nellis… - Optical …, 2004 - spiedigitallibrary.org
Immersion lithography has been proposed as a method for improving optical
microlithography resolution to 45 nm and below via the insertion of a high refractive index …

Simulation study of process latitude for liquid immersion lithography

SY Baek, DC Cole, M Rothschild… - Optical …, 2003 - spiedigitallibrary.org
A simulation package has been developed for predicting the influence of immersion, ie the
presence of a uniform liquid layer between the last objective lens and the photoresist, on …

Modeling fluid thermomechanical response for immersion lithography scanning

A Wei, A Abdo, G Nellis, RL Engelstad, J Chang… - Microelectronic …, 2004 - Elsevier
Immersion lithography has been proposed as a method of improving optical lithography
resolution to 50 nm and below, by increasing the index of refraction in the space between …

Simulating fluid flow characteristics during the scanning process for immersion lithography

A Wei, A Abdo, G Nellis, R Engelstad… - Journal of Vacuum …, 2003 - pubs.aip.org
Immersion lithography has been proposed as a method for improving optical lithography
resolution to 50 nm. The premise behind the concept is to increase the index of refraction in …

Predicting air entrainment due to topography during the filling and scanning process for immersion lithography

A Wei, M El-Morsi, G Nellis, A Abdo… - Journal of Vacuum …, 2004 - pubs.aip.org
Current optical lithography methods are nearing theoretical limits that prevent their use in
the production of circuits for future nodes. A proposed solution is to increase the index of …

Effect of liquid dispensing on flow field for immersion lithography

W Chen, Y Chen, J Zou, X Fu, H Yang… - Journal of Vacuum …, 2009 - pubs.aip.org
Immersion lithography has been proposed as a method for improving optical lithography
resolution to 50 nm and below. The premise behind the concept is to increase the refraction …

Investigation on the critical velocity for liquid loss in immersion lithography

W Chen, X Fu, J Zou, H Yang, X Ruan… - Microelectronic …, 2010 - Elsevier
Immersion lithography seeks to extend the resolution of optical lithography by filling the gap
between the final optical element and the wafer with a liquid characterized by a high index of …